墨西哥中部太平洋沿岸11种最丰富的底栖鱼类之间的营养相互作用

IF 0.5 4区 生物学 Q4 MARINE & FRESHWATER BIOLOGY Ciencias Marinas Pub Date : 2020-06-26 DOI:10.7773/cm.v46i2.3056
J. F. Ortega, E. G. Domínguez, G. G. Sansón
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Se registraron valores bajos en la superposicion de la dieta y solamente se encontraron pocos casos signi-ficativos de superposicion de la dieta en la interaccion entre algunas especies de rayas de la familia Urotrygonidae y los lenguados del orden Pleuronectiformes. La disponibilidad y abundancia de recursos presa en el ambiente y la generalizacion de la amplitud del nicho permiten la coexistencia de la comunidad demersal de depredadores de fondos blandos someros sin competencia evidente por los recursos troficos. EnglishWe describe the diet, feeding strategy, and trophic interactions between the 11 most abundant demersal fish species on the Pacific coast of central Mexico during both the warm and cold seasons. A total of 4,547 stomachs were collected, with 1,921 empty stomachs being discarded. According to the stomach content analysis, 95 prey items were identified and grouped into 70 food categories belonging to crusta-ceans, mollusks, fish, polychaetes, and echinoderms. 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引用次数: 1

摘要

西班牙人描述了墨西哥太平洋中部海岸在温暖和寒冷两个时期内丰度最高的11种底栖鱼类的饮食、饮食策略和营养相互作用。共收集了4547个胃,其中1921个空胃被排除在外。在对胃内容物的分析中,确定了95个食物实体,这些实体被分为70个食物类别,属于甲壳类动物、软体动物、鱼类、多毛类和棘皮动物。根据史密斯指数的值和猎物的高度多样性,这11个物种在两个研究季节所表现出的食物策略都是通才-机会主义的。饮食重叠的数值很低,在尾龙科的一些条纹物种与胸膜动物目的鞋底之间的相互作用中,只有少数有意义的饮食重叠病例。环境中猎物资源的可用性和丰富性,以及生态位宽度的普遍化,使浅水软底掠食者底栖群落共存,而对营养资源没有明显竞争。Englishwe描述了温暖和寒冷季节墨西哥中部太平洋沿岸11种最丰富的底栖鱼类之间的饮食、喂养策略和营养相互作用。共收集了4547个胃,1921个空胃正在排出。根据胃内容物分析,确定了95种猎物,并将其分为70个属于甲壳类动物的食物类别-海洋、软体动物、鱼类、多毛类和棘皮动物。史密斯指数值和高度的猎物多样性表明,这11种鱼类在两个调查季节都表现出了一种普遍的机会喂养战略。记录了饮食重叠的低值,在一些射线(尾龙科)和扁鱼物种(平胸类)之间的相互作用中只发现了少数重要的饮食重叠病例。环境中捕食者资源的可用性和丰富性以及niche breadth的普遍存在,使软浅底的底栖捕食者社区能够在没有任何明显的营养资源竞争的情况下共存。
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Trophic interactions between the 11 most abundant demersal fish species on the Pacific coast of central Mexico
espanolSe realizo la descripcion de la dieta, la estrategia alimenticia y las interacciones troficas de las 11 especies de peces demersales con mayor abundancia en la costa central mexicana del Pacifico durante 2 periodos, el calido y el frio. En total se recolectaron 4,547 estomagos, de los cuales 1,921 estomagos vacios fueron descartados. En el analisis de los contenidos estomacales fueron identificados 95 entidades alimenta-rias, que fueron agrupados en 70 categorias alimentarias pertenecientes a crustaceos, moluscos, peces, poliquetos y equinodermos. De acuerdo a los valores del indice de Smith y la alta diversidad de presas, la estrategia alimenticia mostrada por las 11 especies en ambas temporadas de estudio fue generalista-oportunista. Se registraron valores bajos en la superposicion de la dieta y solamente se encontraron pocos casos signi-ficativos de superposicion de la dieta en la interaccion entre algunas especies de rayas de la familia Urotrygonidae y los lenguados del orden Pleuronectiformes. La disponibilidad y abundancia de recursos presa en el ambiente y la generalizacion de la amplitud del nicho permiten la coexistencia de la comunidad demersal de depredadores de fondos blandos someros sin competencia evidente por los recursos troficos. EnglishWe describe the diet, feeding strategy, and trophic interactions between the 11 most abundant demersal fish species on the Pacific coast of central Mexico during both the warm and cold seasons. A total of 4,547 stomachs were collected, with 1,921 empty stomachs being discarded. According to the stomach content analysis, 95 prey items were identified and grouped into 70 food categories belonging to crusta-ceans, mollusks, fish, polychaetes, and echinoderms. The Smith index value and high prey diversity indicated that the 11 fish species exhibited a generalist opportunistic feeding strategy in both survey seasons. Low values of dietary overlap were recorded, and only a few significant cases of dietary overlap were found in the interaction between some rays (Urotrygonidae) and flatfish species (Pleuronectiformes). The availability and abundance of prey resources in the environment and the generalization of niche breadth allows the demersal predator community of the soft shallow bottoms to coexist without any evident competition for trophic resources.
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来源期刊
Ciencias Marinas
Ciencias Marinas 生物-海洋与淡水生物学
CiteScore
1.10
自引率
0.00%
发文量
9
审稿时长
>12 weeks
期刊介绍: A bilingual open-access publication, Ciencias Marinas (CM) is an international peer-reviewed journal that contains original research findings in all areas of marine science. It is published quarterly by the Autonomous University of Baja California, Mexico, and all its contents are publicly available on our journal website. Though a limited number of copies are still printed, the journal is mainly distributed in its electronic format. CM was conceived in 1973 as part of an academic project aimed to entice local researchers to publicly disclose their findings by adopting the culture of peer-review publishing. This academic project evolved into an international journal after accepting papers from researchers in the United States and, eventually, other parts of the world. Because of the diversity in authorship, CM issues were initially published in either Spanish or English, and occasionally in both languages. It was not until 1984 when CM included both language versions of all its contents, and it then became the fully bilingual journal it still is today. At CM we believe our inclusive format allows us not only to address a wider range of submissions from international authors but also to make published findings available to a wider international audience. So whether you are looking for information on the redfish in Icelandic waters or the physical and biological properties of the Gulf of California, feel free to peruse CM contents. You may find them to provide source material for your research.
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